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Eassy On Earthquake

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1.1 General Background
India faces threats from a variety of natural hazards such as floods, cyclones, droughts, landslides, tsunamis and earthquakes. Over the years, the catastrophic events of earthquake have been causing significant damages resulting in death, countless people going homeless without basic lifelines and amenities. Today hundreds and millions of people throughout the world live with a significant risk to their lives and property due to Earthquake. A huge amount of public infrastructures are continuously at the risk of damage due to earthquake. The unpredictability and sudden occurrence of earthquakes make them somewhat mysterious, both to the public and to the professional designers. The risks due to them are not restricted …show more content…

It is possible to mitigate the effects of strong earth shaking to reduce the damages, injuries and loss of life. The only alternative is to quantify the hazard and take steps to minimize the vulnerability of the structures and life to the damage arising out of the ensuing strong Ground Motion. Kathmandu city has been subjected to frequent earthquakes of moderate intensities and about once in a century to disastrous earthquake of higher magnitude. The occurrence of earthquake was first recorded in Nepal on June 7, 1255 AD by a 7.7 Richter scale, when one third of the total population of Kathmandu was killed. A contemporary account of the high intensity earthquake felt in the Agra-Mathura region on 25 August 1803 has been described by Nazir Akbarbadi (1740-1830) in his Urdu poem “Bhuchal-Nama”. Although the field of Earthquake Engineering started in late 1920 's and early 1930 's in Japan and USA, it has now become a well-recognized discipline in all seismically active areas globally. The Baluchistan Earthquake in 1930’s led to innovative earthquake resistant constructions as a result and led to the development of first seismic zone

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